I just purchased a brand new Echo PB-755ST backpack blower. I love the blower. It starts really easy and has all the power that I need. However, when I place the cruise control all the way down (Max) it doesn’t lock it in at maximum throttle. So basically, if I’m pressing the throttle trigger in all the way, it’s operating at its max of 100% as it should. But when using the cruise control it’s more like 85%. Is there some sort of adjustment I can make so it locks in the cruise control at maximum?